Improvement in horseshoe-machines



UNITED SfrArneI y WILLIAM R.

J USTUS, 0F PITTSBURG, PENNSYLVANIA, ASSIGNQR TO V`SHOENBERGrER & CO., OF SAME PLACE.

Specification forming part of Letters Patent No. 113,173, dated March 28, 1871.

To all whom it may concern: Y

Be it known that I, WILLIAM R. Jusrus, of Pittsburg, Allegheny county, `State of Pennsylvania, have invented certain new` and use ful Improvements in Horseshoe-Machines; and

I do hereby declare the following to be a sufticiently full, clear, and exact description thereof to enable `one skilled in the art to which my invention appertains to make and use it, reference being had to the accompanytion.

Nature and Objects of Invention.

My invention relates to the class of horseshoe -machines which turn 7 or bend the shoes from `prepared blanks, cut to length, by means ot a reciprocating head carrying the form for the shoe and the forms for directing the movement of the swagingrollers; and conl sists, first, in arranging the entire forming mechanism above the table upon which the blank is placed, and locating thev side forms directly above the shoe-form, so that the corresponding sWagi'ng-rollers are also directly l l above each other, for the purpose of relieving the spindles upon which the rollers revolve from undue canting strain, against which a further provision is made by extending the lower rollers (which bend the blank around the toe of the shoe form, and are consequently subl jected to the greatest strain) partly into corresponding recesses in the sliding boxes 5 second, in the peculiar construction ofthe form on which the shoe is bent, bywhich allowance is made for accidental miss-feedin g, and breakage thereby prevented; third, in connection with the reciprocating shoe-for1n, of a projection on the stationary frame, for forcibly removing the bent shoes from the form.

Description of the Accompanying Drawing.

Figure 1 is an exterior perspective viewof a machine embodying my invention. Fig. 2

ing drawing, making part of this specitcasents, in perspective, detached views of the swaging-rollers andsliding boxes.

General Description.

A is the frame ot' the machine; B, the driving-shaft, and C the sliding former-head;7

`the latter being snugly fitted between the `*slides or guides D D', and receiving a rectilineal reciprocating motion through pitrnan E and crank F.

` The head C is provided on the lower sido with the shoe-form G and side forms or guides Il, both being placed in the head in such a po-v sition that the lower face of the side forms is opposite the upper face of the shoe-form. This provision enables the side forms to so direct the sWaging-rollers that there shall be but little twisting or cantin g of said rollers in their lbearin gs. Y

The form G is constructed with 'a iat face, g, and form proper, g. It also has an inclined projection, g, against which the projection a' `on the frameoperates, and a deep recess or gutter, g', on each side. l

=jection a, which forces ott' the iinished shoe, and the recesses g provide an exit or place of escape for any blank which has not been `properly fed, and thus saves the machine from gbreakage.

I I are sliding boxes, tted to move laterally, of suoli a construction that the rollers K L rest directly upon the top of the boxes, and are journaled on pins piercing the boxes centrally in the frame A. Each of these boxes is tted with a pair of rollers, K L. rIhe lower roller, K, is the swaging-roller proper. `It is constructed with a ange, lo, on which the lower face of the shoe-blank M rests, and when in action rolls over the side of the blank. The ange lc of these rollers extends into and snugly tits a recess `in the boxes, so that the strain upon said rollers, in bending the blank around the toe of the shoe-form, is mainly sns tained by the boxes.

The rollers L rest upon the rollers K, so that any pressure upon the one will be resisted by the other in a line as nearly di rect as possible, and the pins upon which the rollers revolve are thus savedl from undue The projection g" serves to guide the pro twisting or canting strain on the boxes; and, in connection with the forms H, over which they roll, the rollers L serve to compel the rollers K to form the shoe by coniinin g them to a definitely-prescribed path.

The forms H, I prefer to make adjustable, and this is accomplished by means of bolts h, slotted holes h', and set-screws h. These may be so adjusted as to compel the rollers K to thickenup the shoe at the ends.

It will be seen that it is necessary, in the operation of the machine, that the rollers K should revolve in the opposite direction to the rollers L, and to provide for this they are sep'- arately journaled on the pins N, the latter being fitted to revolve in the boxes I I. This construction permits of the pins N either revolvin g or standing still, and thus taking that course in which there is the least friction, and also renders :every piece readily detachable for repairs, cooling, change of rollersfor different sizes, &c.

Q P are straight bars of lnetal, (steel preferred,) which are fastened at the lower ends to the frame, and at the upper ends to the sliding boxes I I. rlhese bars, by elastic deflection, permit the boxes I I to move outward in the slides, and forcibly compel the swaging-rollers to hug the blank in the act of forming the shoe. They also return the sliding boxes to the lcentral position in the frame after the formation of each shoe.

yIt R are adjustable gages, between which the blank is placed and held immediately before it is formed.

' rlhe springs l? Pf, by acting to preserve the rollers in the central position when notin contact with the form G, and causing them to press tightly against the blank when they are passing around the form, prevent the accidental displacement of the rollers and boxes.

Operation.

The prepared blank, cut to length, is placed iatwise between the guides or gages R It', and against the rollers K, at the time the sliding head is most distant from the rollers. 0n

the return of the head O the blank is bent by the combined action of the shoe-form G and the rollers K K, the rollers L L and side forms H assisting to complete the work by confining the rollers K K to a definite path. When the shoe-form G has passed between the rollers so far as to clear the shoe, the latter is forced off by the projection a and drops to the ground.

It is obvious that variations may be made in the formation of certain parts of the machine without any departure from the principle of construction and operation, and also that theV action maybe reversed, the: sliding swaging-rollers receiving a longitudinal as Well as a lateral motion, the head (l being per mitted to stand still.

Each of the pins N can be constructed to revolve or not. If made stationary, the rollers K L will revolve upon the pin in opposite directions. If made so as to compel it to revolve, one of the rollers can be fastened to the pin. If made free to revolve or not, the action will be as before explained.

Claims.

1. The arrangement above the table upon which the blank is placed of the shoeform G, side formsor ways H H, swaging-rollers L L and K K, and boxes I'I, with reference to one another, substantially as and for the purpose set forth.

2. The form G, when constructed with side recesses, g", as described, and for the purpose specified. l

3. In the described combination with the reciprocating shoe-form G, constructed with a projection, g", inclining upward, the projection a of the frame A, as and for the purpose set forth.

In testimony of which invention I hereunto set my hand.

WILLIAM It. J USTUS.

' Witnesses:

JAs. E. McKELvY, W. J. A. KENNEDY. 

